6840070890806 has 4 divisors (see below), whose sum is σ = 10260106336212. Its totient is φ = 3420035445402.

The previous prime is 6840070890781. The next prime is 6840070890841. The reversal of 6840070890806 is 6080980700486.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710017722700 + ... + 1710017722703.

It is an arithmetic number, because the mean of its divisors is an integer number (2565026584053).

Almost surely, 2^{6840070890806} is an apocalyptic number.

6840070890806 is a deficient number, since it is larger than the sum of its proper divisors (3420035445406).

6840070890806 is a wasteful number, since it uses less digits than its factorization.

6840070890806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3420035445405.

The product of its (nonzero) digits is 4644864, while the sum is 56.

The spelling of 6840070890806 in words is "six trillion, eight hundred forty billion, seventy million, eight hundred ninety thousand, eight hundred six".